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Home >> Land Rover >> 2001 >> Discovery II (LT) V8-4.0L >> Repair and Diagnosis >> Cruise Control >> Description and Operation >> Cruise Control - Description >> Cruise Control Master Switch
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Cruise Control Master Switch









Cruise Control Master Switch
The cruise control master switch switches the system on and off. When the cruise control master switch is on, an LED within the switch illuminates. If the cruise control master switch is off, cruise control will not operate. The switch provides a 12 Volt teed to the cruise control ECU.

The cruise control master switch is located on the instrument panel near the steering column.

Input/Output
The input from the cruise control master switch to the cruise control ECU is either a 12 Volts ignition feed or an open circuit. 12 Volts indicates that the cruise control master switch is on and the system can be activated. An open circuit indicates that the cruise control master switch is off and cruise control cannot be activated.

TestBook will not communicate with the cruise control ECU if the cruise control master switch is off.
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